DetailsPuppies _Desigend by richgain ( http://www.thingiverse.com/thing:31067 ) _A puppy is a juvenile dog. Some puppies can weigh 1–3 lb (0.45–1.36 kg), while larger ones can weigh up to 15–23 lb (6.8–10.4 kg). All healthy puppies grow quickly after birth. A puppy's coat color may change as the puppy grows older, as is commonly seen in breeds such as the Yorkshire Terrier. In vernacular English, puppy refers specifically to dogs while pup may often be used for other mammals such as seals, giraffes, guinea pigs, or even rats. _Despite being the epitome of cuteness, puppies are a big commitment. Turning these jumping, chewing, nipping, yipping, piddling, pooping little creatures into well-behaved dogs takes a good deal of time and effort.Without that time and effort, puppies — no matter what the breed or bloodline — easily develop problems such as nervousness, aggression, and house-soiling. And once the novelty has worn off and the tiny ball of fluff is a nearly full-grown adolescent, these problems land many dogs in shelters. Others are banished to the backyard for a lifetime of boredom and isolation. That's why it's important to think carefully and do your research before bringing home a puppy. _Born after an average of 63 days of gestation, puppies emerge in an amnion that is bitten off and eaten by the mother dog.Puppies begin to nurse almost immediately. If the litter exceeds six puppies, particularly if one or more are obvious runts, human intervention in hand-feeding the stronger puppies is necessary to ensure that the runts get proper nourishment and attention from the mother. As they reach one month of age, puppies are gradually weaned and begin to eat solid food. The mother may regurgitate partially digested food for the puppies or might let them eat some of her solid food. The mother dog usually refuses to nurse at this stage, though she might let them occasionally nurse for comfort. _At first, puppies spend the large majority of their time sleeping and the rest feeding. They instinctively pile together into a heap, and become distressed if separated from physical contact with their littermates, by even a short distance.Puppies are born with a fully functional sense of smell but can't open their eyes. During their first two weeks, a puppy's senses all develop rapidly. During this stage the nose is the primary sense organ used by puppies to find their mother's teats, and to locate their litter-mates, if they become separated by a short distance. Puppies open their eyes about nine to eleven days following birth. At first, their retinas are poorly developed and their vision is poor. Puppies are not able to see as well as adult dogs. In addition, puppies' ears remain sealed until about thirteen to seventeen days after birth, after which they respond more actively to sounds. Between two to four weeks old, puppies usually begin to growl, bite, wag their tails, and bark.
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SKU 10000689 Length [mm] 100 Width [mm] 62.24 Height [mm] 40.09 Volume [cm³] 73.73 Area [cm²] 143.33